
#ifndef __base_scoped_temp_dir_h__
#define __base_scoped_temp_dir_h__

#pragma once

// An object representing a temporary / scratch directory that should be cleaned
// up (recursively) when this object goes out of scope.  Note that since
// deletion occurs during the destructor, no further error handling is possible
// if the directory fails to be deleted.  As a result, deletion is not
// guaranteed by this class.
//
// Multiple calls to the methods which establish a temporary directory
// (CreateUniqueTempDir, CreateUniqueTempDirUnderPath, and Set) must have
// intervening calls to Delete or Take, or the calls will fail.

#include "basic_types.h"
#include "file_path.h"

class ScopedTempDir
{
public:
    // No directory is owned/created initially.
    ScopedTempDir();

    // Recursively delete path.
    ~ScopedTempDir();

    // Creates a unique directory in TempPath, and takes ownership of it.
    // See file_util::CreateNewTemporaryDirectory.
    bool CreateUniqueTempDir();

    // Creates a unique directory under a given path, and takes ownership of it.
    bool CreateUniqueTempDirUnderPath(const FilePath& path);

    // Takes ownership of directory at |path|, creating it if necessary.
    // Don't call multiple times unless Take() has been called first.
    bool Set(const FilePath& path);

    // Deletes the temporary directory wrapped by this object.
    bool Delete();

    // Caller takes ownership of the temporary directory so it won't be destroyed
    // when this object goes out of scope.
    FilePath Take();

    const FilePath& path() const { return path_; }

    // Returns true if path_ is non-empty and exists.
    bool IsValid() const;

private:
    FilePath path_;

    DISALLOW_COPY_AND_ASSIGN(ScopedTempDir);
};

#endif //__base_scoped_temp_dir_h__